Search a number
-
+
1913082369 = 3111717919051
BaseRepresentation
bin111001000000111…
…0101001000000001
311221022210122122120
41302001311020001
512404222113434
6513455554453
765256634422
oct16201651001
94838718576
101913082369
118a1981110
1245482ba29
13246464403
14142111649
15b2e44349
hex72075201

1913082369 has 32 divisors (see below), whose sum is σ = 2962967040. Its totient is φ = 1085088000.

The previous prime is 1913082359. The next prime is 1913082377. The reversal of 1913082369 is 9632803191.

It is not a de Polignac number, because 1913082369 - 25 = 1913082337 is a prime.

It is a super-2 number, since 2×19130823692 = 7319768301157304322, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1913082369.

It is not an unprimeable number, because it can be changed into a prime (1913082349) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 90894 + ... + 109944.

It is an arithmetic number, because the mean of its divisors is an integer number (92592720).

Almost surely, 21913082369 is an apocalyptic number.

It is an amenable number.

1913082369 is a deficient number, since it is larger than the sum of its proper divisors (1049884671).

1913082369 is a wasteful number, since it uses less digits than its factorization.

1913082369 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19261.

The product of its (nonzero) digits is 69984, while the sum is 42.

The square root of 1913082369 is about 43738.7970685066. The cubic root of 1913082369 is about 1241.3985194411.

The spelling of 1913082369 in words is "one billion, nine hundred thirteen million, eighty-two thousand, three hundred sixty-nine".

Divisors: 1 3 11 17 33 51 179 187 537 561 1969 3043 5907 9129 19051 33473 57153 100419 209561 323867 628683 971601 3410129 3562537 10230387 10687611 37511419 57972193 112534257 173916579 637694123 1913082369